#include <Wire.h> 
#include <LiquidCrystal_I2C.h>

// The LCD display you have is I2C with 4 wires
// Connect Vcc, 0V as normal - SCL and SDA as per device - on UNO:
// SCL - pin A5
// SDA - pin A4 

LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display


//define pins for two push buttons for each goal
#define goalHome 3
#define goalAway 2


// setup two int variables to hold each score
int scoreHome = 0;
int scoreAway = 0;



void setup()
{
  
  //setup two input pins wuth pull-up resistors
  pinMode(goalHome, INPUT_PULLUP);
  pinMode(goalAway, INPUT_PULLUP);

  // initialize the lcd 
  lcd.init();                      
    
  // Backlight on
  lcd.backlight();

  //Print top line to the LCD
  lcd.setCursor(0,0);
  lcd.print("HOME  -  AWAY"); 
}


void loop()
{

//Add one to the home team's score
if(digitalRead(goalHome)==LOW){
    scoreHome++;
    delay(500);
  
  }

//Add one to the away team's score
if(digitalRead(goalAway)==LOW){
    scoreAway++;
    delay(500);
  
  }



  //write the new scors on to the second line in the right place
  
  lcd.setCursor(0,1);
  lcd.print(scoreHome);
  
  lcd.setCursor(9,1);
  lcd.print(scoreAway);

}